What should I do if the weather suddenly turns cold and low blood pressure rises?

Every year from the end of March to the beginning of April, after the warm-up, God began to play jokes on people in Beijing, Tianjin and Hebei. Random broadcast in spring, summer, autumn and winter, the temperature is just like getting on the bus, and you can feel all the seasons in one week.

A few days ago, Tianjin cooled down, which made people feel that it was back to winter.

Someone asked, what should I do if the weather suddenly gets cold and low blood pressure rises?

The results showed that when the temperature dropped from 65438 07℃ to below 0℃, the mortality rate of myocardial infarction increased from 4.9% to 6.9%. Another study shows that the incidence of cardiovascular and cerebrovascular diseases increases by 7% every time the temperature drops 10 degrees.

Hypertension is one of the main causes of myocardial infarction and cerebral infarction, and blood pressure fluctuation is the main inducement of acute myocardial infarction and acute cerebral infarction.

Acute myocardial infarction, sudden death, cerebral thrombosis, cerebral hemorrhage, etc. It often happens in winter or when the temperature drops suddenly. It is because of the cold wave that blood pressure will rise. A study in Canada found that when hypertensive patients encounter sub-zero hypothermia, the average systolic/diastolic blood pressure will increase by 7/3mmHg.

This is because the human body suddenly secretes adrenaline reflexively when it is cold. On the one hand, adrenaline shrinks the blood vessels in the epidermis to reduce heat dissipation, which is a kind of protection for the human body; On the other hand, epinephrine can also cause blood pressure increase, heart rate increase, coronary artery and cerebrovascular contraction, and myocardial oxygen consumption increase. In addition, adrenaline can also activate the RAAS system (renin-angiotensin-aldosterone system), which will lead to an increase in blood pressure.

When the temperature drops suddenly and blood pressure rises, patients with hypertension should respond as follows:

1, keep warm:

Patients with hypertension should avoid cold and heat. When the cold wave strikes, they should add clothes and quilts in time. It is best to wear hats and masks when going out in the morning and evening to reduce the direct stimulation of cold air. It is best to have a "temperature buffer zone" when walking outside from a warm room, such as standing in the lobby for a while before going out. Middle-aged and elderly people should not practice in the morning, and it is best to go out at 9~ 10 when the sun is shining.

2, diet: after the cold weather, people like to eat meat "tonic" and often drink alcohol, which is an unhealthy lifestyle for high blood pressure. We should adopt a scientific and regular diet with low salt, low fat, limited smoking and controlled alcohol.

3. Adjust drugs: When the blood pressure rises, you can choose sartan or Pulitzer, both of which block the RAAS system mentioned above to lower blood pressure and also block the sympathetic nervous system.

You can also choose beta blockers, such as betaloc, which can block the activities of sympathetic nervous system and RAAS system.